—Sorry, I'm busy. I can't (回复)them.
—I (visit) Window of the World in Shenzhen if possible(可能).
I was that my penfriend.
On his , .
He is wondering.
How long it ?
He and.
Why last night?
You don't after so many animals.
Thanks.
Do you think in the world?
There are of - only .
Don't until you come to the end of the street. You'll find .
heyou that day ?
The children and took it .
The noise a train.
They , but they .
My mother at six every morning.
We should the flowers in the park.
They worked out the problem yesterday.